Soul Comparison for fire gunner with HIGH PING

[ShiroBlank]

Hey guys what do you think about the legendary soul for a fire gunner considering a scenario of high ping in the range of 200 to 250 ms ??

I've personally tried the short cd one with bullet storm build but i cant seem to fathom some gunners relatively doing better with long cd soul when most people advice against its use.

Any help is much appreciated. Thanks in advance :)